What airlines fly to Sydney?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Sydney from Louisville according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

Delta, United Airlines, and ANA are the most popular carriers operating from Louisville Intl to Sydney Kingsford Smith

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of November 2025.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$644 Cheap Flights from Louisville to Sydney in 2025/26

Q: What is the typical price of a round-trip flight between Louisville and Sydney?

Prices are currently typical for flights on this route. Typical prices usually range from $1,140 to $2,131. The lowest price recently found on this route was $1,215.

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9:15 am - 7:00 amSDF-SYD

30h 45m1 stop

9:30 am - 8:21 pmSYD-SDF

24h 51m2 stops

$1,215United Airlines

Find Deal

Thu, Mar 19 - Sun, Apr 5

3:15 pm - 7:00 amSDF-SYD

47h 45m2 stops

11:50 am - 7:51 pmSYD-SDF

23h 01m1 stop

$1,230United Airlines

Find Deal

Sat, Feb 28 - Fri, Mar 20

3:32 pm - 8:30 amSDF-SYD

24h 58m2 stops

10:40 am - 11:50 pmSYD-SDF

29h 10m2 stops

$1,341Delta

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Mon, Feb 2 - Sun, Mar 1

10:28 am - 6:50 amSDF-SYD

28h 22m2 stops

10:40 am - 8:25 pmSYD-SDF

25h 45m2 stops

$1,347Delta

Find Deal

Sun, Feb 15 - Thu, Feb 19

2:05 pm - 6:20 amSDF-SYD

24h 15m2 stops

11:50 am - 7:51 pmSYD-SDF

24h 01m1 stop

$1,461United Airlines

Find Deal

Mon, Feb 2 - Sun, Mar 1

3:30 pm - 7:00 amSDF-SYD

24h 30m1 stop

9:30 am - 8:01 pmSYD-SDF

24h 31m2 stops

$1,479United Airlines

Find Deal

Thu, Mar 19 - Sun, Apr 5

2:11 pm - 6:55 amSDF-SYD

24h 44m1 stop

1:05 pm - 5:24 pmSYD-SDF

19h 19m1 stop

$1,769Qantas Airways

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Sat, Feb 28 - Fri, Mar 20

3:40 pm - 8:45 amSDF-SYD

25h 05m2 stops

8:15 pm - 7:59 pmSYD-SDF

39h 44m2 stops

$1,809Air New Zealand

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Fri, Dec 5 - Sat, Dec 27

7:10 am - 10:30 amSDF-SYD

35h 20m2 stops

8:15 pm - 7:59 pmSYD-SDF

39h 44m2 stops

$1,810Air New Zealand

Find Deal

Fri, Dec 5 - Sat, Dec 27

6:27 pm - 6:55 amSDF-SYD

21h 28m1 stop

12:00 pm - 5:24 pmSYD-SDF

19h 24m1 stop

$1,845Qantas Airways

Find Deal

Thu, Mar 19 - Sun, Apr 5

United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets

United Airlines

Mar 19

SDF9:15 amLouisville Intl

30h 45m

1 stop

SYD7:00 amSydney Kingsford Smith

Apr 5

SYD9:30 amSydney Kingsford Smith

24h 51m

2 stops

SDF8:21 pmLouisville Intl

$1,215

Find similar

United Airlines

Feb 28

SDF3:15 pmLouisville Intl

47h 45m

2 stops

SYD7:00 amSydney Kingsford Smith

Mar 20

SYD11:50 amSydney Kingsford Smith

23h 01m

1 stop

SDF7:51 pmLouisville Intl

$1,230

Find similar

United Airlines

Feb 2

SDF2:05 pmLouisville Intl

24h 15m

2 stops

SYD6:20 amSydney Kingsford Smith

Mar 1

SYD11:50 amSydney Kingsford Smith

24h 01m

1 stop

SDF7:51 pmLouisville Intl

$1,461

Find similar

Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets

Delta

Feb 2

SDF3:32 pmLouisville Intl

24h 58m

2 stops

SYD8:30 amSydney Kingsford Smith

Mar 1

SYD10:40 amSydney Kingsford Smith

29h 10m

2 stops

SDF11:50 pmLouisville Intl

$1,341

Find similar

Delta

Feb 15

SDF7:50 amLouisville Intl

31h 00m

2 stops

SYD6:50 amSydney Kingsford Smith

Feb 19

SYD2:15 pmSydney Kingsford Smith

22h 10m

2 stops

SDF8:25 pmLouisville Intl

$1,347

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

9:15 am-7:00 am

1 stop30h 45m

Sydney Kingsford Smith

Sun 4/5

9:30 am-8:21 pm

2 stops24h 51m

$1,215

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 2/28

3:15 pm-7:00 am

2 stops47h 45m

Sydney Kingsford Smith

Fri 3/20

11:50 am-7:51 pm

1 stop23h 01m

$1,230

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 2/2

3:32 pm-8:30 am

2 stops24h 58m

Sydney Kingsford Smith

Sun 3/1

10:40 am-11:50 pm

2 stops29h 10m

$1,341

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 2/15

10:28 am-6:50 am

2 stops28h 22m

Sydney Kingsford Smith

Thu 2/19

10:40 am-8:25 pm

2 stops25h 45m

$1,347

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 2/2

2:05 pm-6:20 am

2 stops24h 15m

Sydney Kingsford Smith

Sun 3/1

11:50 am-7:51 pm

1 stop24h 01m

$1,461

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

3:30 pm-7:00 am

1 stop24h 30m

Sydney Kingsford Smith

Sun 4/5

9:30 am-8:01 pm

2 stops24h 31m

$1,479

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 2/28

2:11 pm-6:55 am

1 stop24h 44m

Sydney Kingsford Smith

Fri 3/20

1:05 pm-5:24 pm

1 stop19h 19m

$1,769

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 12/5

3:40 pm-8:45 am

2 stops25h 05m

Sydney Kingsford Smith

Sat 12/27

8:15 pm-7:59 pm

2 stops39h 44m

$1,809

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 12/5

7:10 am-10:30 am

2 stops35h 20m

Sydney Kingsford Smith

Sat 12/27

8:15 pm-7:59 pm

2 stops39h 44m

$1,810

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

6:27 pm-6:55 am

1 stop21h 28m

Sydney Kingsford Smith

Sun 4/5

12:00 pm-5:24 pm

1 stop19h 24m

$1,845

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, April is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,110. If you are unable to visit Sydney during the month of April, then departing from Louisville during the month November is also very affordable. Most momondo users find prices during this month for around $1,142.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Louisville to Sydney is on a Wednesday when prices can be found for as low as $1,260. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $2,104.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Louisville to Sydney at noon for as low as $1,343. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the morning, with an average ticket price of $1,798. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 5% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Direct flights	None

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

Search flight deals

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 21h 28m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of November 2025.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (77% of total bookings). The next most popular airline is Delta (23%).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $930	Free Cancellation	Rating 7.4 9,028 reviews		Search United Airlines flights
Delta	PriceFrom $979	Free Cancellation	Rating 7.9 8,002 reviews		Search Delta flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Cronulla

Manly

Penrith

Leura

Lithgow

Charlestown

Terrigal

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

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Flights to Melbournefrom $673

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Flights to Darwinfrom $1,112

Flights to Maroochydorefrom $1,040

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Cheap flights from Louisville to Sydney from $644

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets

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Our best Delta deals on Louisville to Sydney flight tickets

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How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Louisville to Sydney is on a Wednesday when prices can be found for as low as $1,260. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $2,104.

What is the cheapest time of day to depart on your flight to Sydney?

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 5% on your flight if you consider stops on a Louisville to Sydney flight.

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

Delta, United Airlines, and ANA are the most popular carriers operating from Louisville Intl to Sydney Kingsford Smith

What airlines fly to Sydney?

When to book flights from Louisville to Sydney

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Direct flights

How far is Louisville Intl to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from Louisville to Sydney?

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales